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Author SHA1 Message Date
Chris Lattner
140f4a315b first step to fixing PR8642: don't fold away empty basic blocks 
which have trapping constant exprs in them due to PHI nodes.
Eliminating them can cause the constant expr to be evalutated
on new paths if the input edges are critical.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122164 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 03:02:34 +00:00
Rafael Espindola
f399d9d37b Move all folding to AttemptToFoldSymbolOffsetDifference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122160 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 02:15:04 +00:00
Michael J. Spencer
79e8625220 Fix whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122158 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 22:23:15 +00:00
Michael J. Spencer
7385509101 Support/PathV1: Deprecate get{Basename,Dirname,Suffix}. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122157 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 22:23:07 +00:00
Chris Lattner
a37029cd24 simplify this a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122156 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 20:22:49 +00:00
Anton Korobeynikov
c8bd78c16b Restore the behavior of frame lowering before my refactoring. 
It turns out that ppc backend has really weird interdependencies
over different hooks and all stuff is fragile wrt small changes.
This should fix PR8749


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122155 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 19:53:14 +00:00
Roman Divacky
7529b16410 Add support for lexing single quotes like 'c'. 
This fixed 8615.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122150 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 08:56:37 +00:00
Owen Anderson
fffa863536 Revert r122143 through r122140, which collectively broke the LLVMC tests on 
the buildbots.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122149 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 07:37:18 +00:00
Rafael Espindola
3132780a2e Merge isAbsolute into IsSymbolRefDifferenceFullyResolved. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122148 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 06:27:54 +00:00
Rafael Espindola
1ec5bd31fe Remove the MCObjectFormat class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122147 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 05:37:28 +00:00
Rafael Espindola
3f037ef2f5 Add a FIXME and explain a hack. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122144 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 04:19:20 +00:00
Michael J. Spencer
1d6e7d2e42 Fix whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122142 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 04:13:46 +00:00
Michael J. Spencer
b9c767cce5 Support/PathV1: Deprecate get{Basename,Dirname,Suffix}. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122141 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 04:13:36 +00:00
Rafael Espindola
f705a7ed27 Fix the note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122139 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 04:01:45 +00:00
Rafael Espindola
d076482ab7 Revert 122011, 122012, 122013, 122023 adding back an important optimization. 
I added a note, but suggestions on how to add a test are really welcome.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122138 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 03:57:21 +00:00
Jakob Stoklund Olesen
390482569c Apparently, operandices is not a word. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122135 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 03:28:32 +00:00
Rafael Espindola
bff66a86e6 Move some data to the TargetWriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122134 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 03:27:34 +00:00
Jakob Stoklund Olesen
83d1ba5728 Teach the inline spiller to attempt folding a load instruction into its single 
use before rematerializing the load.

This allows us to produce:

    addps	LCPI0_1(%rip), %xmm2

Instead of:

    movaps	LCPI0_1(%rip), %xmm3
    addps	%xmm3, %xmm2

Saving a register and an instruction. The standard spiller already knows how to
do this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122133 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 03:04:14 +00:00
Jakob Stoklund Olesen
87c6d25c71 Tweak debug spew. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122132 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 03:04:11 +00:00
Bill Wendling
a68a4fdf37 r120333 changed the opcode for the Thumb1 stuff from ARM::tMOVr to 
ARM::tMOVgpr2gpr. But this check didn't change. As a result, we were getting
misaligned references to the jump table from an ADR instruction.

There is a test case, but unfortunately it's sensitive to random code changes.

<rdar://problem/8782223>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122131 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 02:13:59 +00:00
Bill Wendling
cd080249fc RemoveUnusedCPEntries can change things. Track it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122129 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 01:53:06 +00:00
Jakob Stoklund Olesen
dfe3b6d2a9 Check that the register is live-in to the loop header before inserting copies in 
the loop predecessors.

The register can be live-out from a predecessor without being live-in to the
loop header if there is a critical edge from the predecessor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122123 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 01:06:19 +00:00
Nick Lewycky
bb1744ec15 Fix GCC warning: 
lib/CodeGen/RegAllocGreedy.cpp:311: error: unused variable 'PhysReg' [-Wunused-variable]


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122122 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 01:05:55 +00:00
Rafael Espindola
1ee03a835e Relax push instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122121 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 01:01:34 +00:00
Nick Lewycky
90862eeb7d Make LazyValueInfo non-recursive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122120 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 01:00:40 +00:00
Bob Wilson
094dd80ecc Rearrange some Neon multiclasses. No functional changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122119 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 00:42:58 +00:00
Michael J. Spencer
b3127bb06a Support/PathV1: Deprecate getLast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122116 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 00:19:10 +00:00
Owen Anderson
a479b23256 Add support to CallbackVH to receive notification when a Value's use-list changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122114 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 00:07:15 +00:00
Jakob Stoklund Olesen
89cab93fe9 Pass a Banner argument to the machine code verifier both from 
createMachineVerifierPass and MachineFunction::verify.

The banner is printed before the machine code dump, just like the printer pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122113 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 00:06:56 +00:00
Bob Wilson
3deb45149a Fix result type of Neon floating-point comparisons against zero. 
The result vector elements are always integers.  Radar 8782191.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122112 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 00:04:33 +00:00
Bob Wilson
3a75b9bc8f Add some missing entries in ARMTargetLowering::getTargetNodeName. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122111 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 00:04:26 +00:00
Bill Wendling
2d0537cdd8 Whitespace fixes. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122110 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:27:41 +00:00
Jakob Stoklund Olesen
8d12140437 Avoid dereferencing end() in collectInterferingVRegs() when there is no 
interference.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122108 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:16:38 +00:00
Jakob Stoklund Olesen
af24964251 Make the -verify-regalloc command line option available to base classes as 
RegAllocBase::VerifyEnabled.

Run the machine code verifier in a few interesting places during RegAllocGreedy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122107 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:16:35 +00:00
Jakob Stoklund Olesen
f428eb6c1b Enable loop splitting in RegAllocGreedy. 
The heuristics split around the largest loop where the current register may be
allocated without interference.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122106 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:16:32 +00:00
Nate Begeman
9a3dc55202 Add vector versions of some existing scalar transforms to aid codegen in matching psign & pblend operations to the IR produced by clang/gcc for their C idioms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122105 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:12:19 +00:00
Bill Wendling
976ef86689 During local stack slot allocation, the materializeFrameBaseRegister function 
may be called. If the entry block is empty, the insertion point iterator will be
the "end()" value. Calling ->getParent() on it (among others) causes problems.

Modify materializeFrameBaseRegister to take the machine basic block and insert
the frame base register at the beginning of that block. (It's very similar to
what the code does all ready. The only difference is that it will always insert
at the beginning of the entry block instead of after a previous materialization
of the frame base register. I doubt that that matters here.)

<rdar://problem/8782198>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122104 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:09:14 +00:00
Bob Wilson
d727343a40 Fix a DAGCombiner crash when folding binary vector operations with constant 
BUILD_VECTOR operands where the element type is not legal.  I had previously
changed this code to insert TRUNCATE operations, but that was just wrong.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122102 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:06:49 +00:00
Bob Wilson
9bb43e1675 Avoid report_fatal_error in ARM's PrintAsmOperand method. 
The standard error handling in AsmPrinter::EmitInlineAsm handles this much
better, so just use it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122100 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:06:42 +00:00
Bob Wilson
26156456dd Remove trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122099 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:06:32 +00:00
Nate Begeman
b65c175d32 Add support for matching psign & plendvb to the x86 target 
Remove unnecessary pandn patterns, 'vnot' patfrag looks through bitcasts


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122098 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 22:55:37 +00:00
Owen Anderson
175fb36f10 Thumb's forced-PC-alignment requirement applies to the _total_ displacement, not just to the fragment relative 
portion.  While the fragment boundary is usually already aligned, it is possible for it not to be, which 
would lead to a non-aligned final displacement.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122091 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 21:49:48 +00:00
Dale Johannesen
f5daf8bb7f Add a transform to DAG Combiner. This improves the 
code for the case where 32-bit divide by constant is
turned into 64-bit multiply by constant.  8771012.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122090 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 21:45:49 +00:00
Michael J. Spencer
965841cfe4 Support/Path: Deprecate PathV1::isAbsolute. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122086 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 21:21:31 +00:00
Benjamin Kramer
3ce88c9290 PathV2: Use StringRef::substr to simplify substring creation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122085 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 20:27:37 +00:00
Jakob Stoklund Olesen
2f3a4aa550 Allow missing kill flags on an untied operand of a two-address instruction when 
the operand uses the same register as a tied operand:

  %r1 = add %r1, %r1

If add were a three-address instruction, kill flags would be required on at
least one of the uses. Since it is a two-address instruction, the tied use
operand must not have a kill flag.

This change makes the kill flag on the untied use operand optional.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122082 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 19:18:41 +00:00
Jim Grosbach
a3dbd3a244 If The ARM WriteNopData() gets an unaligned byte count to pad out, fill in with 
a partial value. rdar://8782954

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122078 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 19:03:02 +00:00
Benjamin Kramer
7fb866643e Missed some StringRefRefs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122077 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 18:59:09 +00:00
Jim Grosbach
f0db261e97 Add bits 31-28 to the Thumb2 encoding of TBB/TBH. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122076 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 18:42:56 +00:00
Jim Grosbach
6ec6eeb692 Handle 2 and 4 byte data blob fixup values for ARM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122075 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 18:39:10 +00:00
Benjamin Kramer
d53f3c864b Pass StringRefs by value, for consistency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122074 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 18:19:06 +00:00
Jakob Stoklund Olesen
090100fdb1 Add MachineLoopRange comparators for sorting loop lists by number and by area. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122073 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 18:13:52 +00:00
Owen Anderson
e63dda51c2 Reapply r121905 (automatic synthesis of @llvm.sadd.with.overflow) with a fix for a bug that manifested itself 
on the DragonEgg self-host bot.  Unfortunately, the testcase is pretty messy and doesn't reduce well due to
interactions with other parts of InstCombine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122072 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 18:08:00 +00:00
Rafael Espindola
31f3578b00 Store and free the TargetObjectWriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122070 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 18:01:31 +00:00
Rafael Espindola
6024c97ffa Stub out explicit MCELFObjectTargetWriter interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122067 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 17:45:22 +00:00
Rafael Espindola
285b3e5b61 Move createELFObjectWriter to its own header. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122064 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 16:59:53 +00:00
Benjamin Kramer
14c0987bd9 SimplifyCFG: Ranges can be larger than 64 bits. Fixes Release-selfhost build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122054 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 10:48:14 +00:00
Benjamin Kramer
23dcd00ede Fix mismatched new[]/delete. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122053 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 09:56:50 +00:00
Kalle Raiskila
18aa393153 Don't feed 19 bit immediates to ILA. 
Patch (slightly modified) by Visa Putkinen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122052 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 09:36:09 +00:00
Rafael Espindola
127a6a47bd Use getFixupKindInfo to implement isFixupKindPCRel, ELF version. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122050 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 07:28:17 +00:00
Chris Lattner
e27db74a60 improve switch formation to handle small range 
comparisons formed by comparisons.  For example,
this:

void foo(unsigned x) {
  if (x == 0 || x == 1 || x == 3 || x == 4 || x == 6) 
    bar();
}

compiles into:

_foo:                                   ## @foo
## BB#0:                                ## %entry
	cmpl	$6, %edi
	ja	LBB0_2
## BB#1:                                ## %entry
	movl	%edi, %eax
	movl	$91, %ecx
	btq	%rax, %rcx
	jb	LBB0_3

instead of:

_foo:                                   ## @foo
## BB#0:                                ## %entry
	cmpl	$2, %edi
	jb	LBB0_4
## BB#1:                                ## %switch.early.test
	cmpl	$6, %edi
	ja	LBB0_3
## BB#2:                                ## %switch.early.test
	movl	%edi, %eax
	movl	$88, %ecx
	btq	%rax, %rcx
	jb	LBB0_4

This catches a bunch of cases in GCC, which look like this:

 %804 = load i32* @which_alternative, align 4, !tbaa !0
 %805 = icmp ult i32 %804, 2
 %806 = icmp eq i32 %804, 3
 %or.cond121 = or i1 %805, %806
 %807 = icmp eq i32 %804, 4
 %or.cond124 = or i1 %or.cond121, %807
 br i1 %or.cond124, label %.thread, label %808

turning this into a range comparison.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122045 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 06:20:15 +00:00
Daniel Dunbar
1139d5090a MC/ARM: Use aggressive symbol folding (important for jump tables, for example). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122044 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 06:00:24 +00:00
Daniel Dunbar
17304b3489 MC/Expr: Implemnt more aggressive folding during symbol evaluation using 
IsSymbolRefDifferenceFullyResolved(). For example, we will now fold away
something like:
--
_a:
...
L0:
...
L1:
...
.long (L1 - L0) / 2
--

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122043 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 05:50:33 +00:00
Daniel Dunbar
b87422778c MC/Mach-O: On second thought, use a custom hook for enabling aggressive 
IsSymbolRefDifferenceFullyResolved, it turns out this does change behavior on
enough cases for x86-32 that I would rather wait a bit on it.
 - In practice, we will want to change this eventually because it only means we
   generate less relocations (it also eliminates the need for the horrible
   '.set' hack that Darwin requires in some places).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122042 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 05:50:29 +00:00
Daniel Dunbar
32c1c5ae5f MC/Mach-O: Implement IsSymbolRefDifferenceFullyResolved. 
- Unlike for fixups, we always do the "reliable" thing (not just for x86_64).
 - Since Darwin 'as' would typically reject things that using this will allow,
   we don't need to worry about compatibility.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122038 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 04:54:58 +00:00
Daniel Dunbar
1f3662abba MC/ObjectWriter: Add a new IsSymbolRefDifferenceFullyResolved target format specific hook. 
- Currently just has stub implementations for Mach-O, ELF, and COFF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122037 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 04:54:54 +00:00
Jakob Stoklund Olesen
ff2e9b4225 Provide LiveIntervalUnion::Query::checkLoopInterference. 
This is a three-way interval list intersection between a virtual register, a
live interval union, and a loop. It will be used to identify interference-free
loops for live range splitting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122034 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 04:09:47 +00:00
Daniel Dunbar
5d2477cecf MC/Assembler: Strip out object writer arguments, now that it is always available 
-- and remove FIXME asking for the same!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122032 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 02:45:59 +00:00
Daniel Dunbar
feb7ba3d9a MC/Assembler: Make the MCObjectWriter available through the lifetime of the 
assembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122031 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 02:45:41 +00:00
Jim Grosbach
e509aa961c Trailing whitespace and 80 column fixups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122026 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 02:10:59 +00:00
Daniel Dunbar
7b62afac0a MC/Target: Remove HasScatteredSymbols target hook variable, which has been 
superceded and was effectively dead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122024 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 02:06:08 +00:00
Daniel Dunbar
8f714fedba MC/Expr: Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122023 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 02:05:45 +00:00
Bob Wilson
495de3b783 Fix crash compiling a QQQQ REG_SEQUENCE for a Neon vld3_lane operation. 
Radar 8776599

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122018 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:21:12 +00:00
Bob Wilson
a1f544b62e Use PairDRegs to implement ConcatVectors. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122017 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:21:08 +00:00
Bob Wilson
c7c5e781a3 Fix a comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122016 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:21:05 +00:00
Dan Gohman
c32046e6ea Revert r64460. strtol and friends cannot be marked readonly, even with 
a null endptr argument, because they may write to errno.

This fixes a seflhost miscompile observed on Linux targets when TBAA
was enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122014 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:09:43 +00:00
Daniel Dunbar
2d8e3e741f MC: Remove another dead MCAssembler argument, and update clients. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122013 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:07:35 +00:00
Daniel Dunbar
92c66c7bf9 MC: Remove dead MCAssembler argument -- Rafael, can you check the FIXME I added 
here?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122012 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:07:31 +00:00
Daniel Dunbar
204e3b65eb MC: Simplify (remove unnecessary MCAssembler argument, obsoleted by containment 
in MCAsmLayout).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122011 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:07:28 +00:00
Daniel Dunbar
cdf94e8592 Write => in a more normal form. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122009 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:07:22 +00:00
Daniel Dunbar
f2ed62d6bf MC/Expr: Simplify (and add a FIXME). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122008 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:07:20 +00:00
Rafael Espindola
dfe125cc9c "Fix" FDE alignment to match what gas does. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122006 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 00:28:02 +00:00
Rafael Espindola
3ee33aa6f9 Make pushq produce signed relocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122005 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 22:50:01 +00:00
Wesley Peck
8a28f21379 Fix MBlaze backend call instructions so that arguments passed through registers 
are correctly marked as used. This removes a hack where the call instructions
marked all possible argument registers as used in the tablegen description.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121994 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 19:41:31 +00:00
Jim Grosbach
3efad8fad4 Pseudo-ize the Thumb1 tBfar pattern. rdar://8777974 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121990 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 19:11:16 +00:00
Daniel Dunbar
dd18e28c62 MC/Expr: Add a doxyment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121988 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 18:36:25 +00:00
Daniel Dunbar
5d05d9769e MC/Mach-O: Lift some MachObjectWriter arguments into the target specific 
interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121981 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 17:21:02 +00:00
Daniel Dunbar
ae5abd595f MC/Mach-O: Stub out explicit MCMachObjectTargetWriter interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121973 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 16:09:19 +00:00
Daniel Dunbar
297ed28bf9 Fix indentation (per style guide). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121972 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 16:08:43 +00:00
Daniel Dunbar
aa4b7dd13b MC/Mach-O: Move createMachObjectWriter into MCMachObjectWriter.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121971 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 16:08:33 +00:00
Daniel Dunbar
7e06af85d1 MC/Mach-O: Use fixup info instead of hard coded list. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121970 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 15:42:31 +00:00
Frits van Bommel
01abcf339f Fix a bug in the loop in JumpThreading::ProcessThreadableEdges() where it could falsely produce a MultipleDestSentinel value if the first predecessor ended with an 'indirectbr'. If that happened, it caused an unnecessary FindMostPopularDest() call. 
This wasn't a correctness problem, but it broke the fast path for single-predecessor blocks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121966 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 12:16:00 +00:00
Duncan Sands
ebef48ea4b Speculatively revert commit 121905 since it looks like it might have broken the 
dragonegg self-host buildbot.  Original commit message:

Add an InstCombine transform to recognize instances of manual overflow-safe addition
(performing the addition in a wider type and explicitly checking for overflow), and
fold them down to intrinsics.  This currently only supports signed-addition, but could
be generalized if someone works out the magic constant formulas for other operations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121965 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 09:40:54 +00:00
Michael J. Spencer
3ff9563c3e MemoryBuffer now return an error_code and returns a OwningPtr<MemoryBuffer> via an out parm. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121958 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 03:29:14 +00:00
Daniel Dunbar
2761fc4270 MC: Move target specific fixup info descriptors to TargetAsmBackend instead of 
the MCCodeEmitter, which seems like a better organization.
 - Also, cleaned up some magic constants while in the area.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121953 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 03:20:06 +00:00
Jason W Kim
f13743bb3c 1. ARM/MC/ELF: A few more ELF relocs for .o 
2. Fixed EmitLocalCommonSymbol for ELF (Yes, they exist. :)
   Test added.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121951 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 03:12:17 +00:00
Daniel Dunbar
745dacc91d MC: Make TargetAsmBackend available to the AsmStreamer. 
- Treaty talks on the non-proliferation of MC objects broke down.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121949 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 03:05:59 +00:00
Dan Gohman
326faecc35 Update a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121946 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 02:55:10 +00:00
Dan Gohman
387f28aff4 Make memcpyopt TBAA-aware. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121944 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 02:51:19 +00:00
NAKAMURA Takumi
ad3ea3d85f lib/Support/regexec.c: Let Regex LLP64-aware. 
On LLP64 Win64, 'states1' (for small version) was expanded to 'char *' for large version. Thus small version would be mischosen when nstates > 32 regardless of sizeof(long) on Win64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121942 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 01:48:15 +00:00